CORNWALL - The Cornwall campus of St. Luke's Cornwall Hospital was locked down most of the Sunday after a patient who recently travelled abroad came to the hospital with symptoms of upper respiratory trouble.

A statement released by the hospital said the patient also brought with them a powder-like substance. The lockdown was initiated to ensure the safety of all patients, visitors and staff. Incoming patients were diverted to other area hospitals.

The hospital's emergency staff contacted authorities and an investigation by the Orange County Hazardous Materials team and local fire and police departments began.

The investigation concluded that the powder was a non-hazardous material.

The lockdown, which began around 11:30 a.m., was ended and the hospital was reported back to normal operation by 10 p.m. The emergency department "has been deemed safe for all patients, visitors and staff," the hospital said.